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An Econometric Analysis of IBRD Creditworthiness
McKenzie, David 한국국제경제학회 2004 International Economic Journal Vol.18 No.4
This paper finds that one can econometrically ascertain the determinants of default to the International Bank for Reconstruction and Development (IBRD) through panel logit analysis. Creditworthiness is found to be determined by political and external factors in addition to economic variables. Default to the IBRD is seen to fall into a graduated hierarchy of default, whereby default occurs first to Paris Club and Commercial Bank creditors, with subsequent default to the IBRD being triggered by a high proportion of IBRD and short-term debt in the portfolio and other economic and political factors.
Terrain Geometry from Monocular Image Sequences
McKenzie, Alexander,Vendrovsky, Eugene,Noh, Jun-Yong Korean Institute of Information Scientists and Eng 2008 Journal of Computing Science and Engineering Vol.2 No.1
Terrain reconstruction from images is an ill-posed, yet commonly desired Structure from Motion task when compositing visual effects into live-action photography. These surfaces are required for choreography of a scene, casting physically accurate shadows of CG elements, and occlusions. We present a novel framework for generating the geometry of landscapes from extremely noisy point cloud datasets obtained via limited resolution techniques, particularly optical flow based vision algorithms applied to live-action video plates. Our contribution is a new statistical approach to remove erroneous tracks ('outliers') by employing a unique combination of well established techniques-including Gaussian Mixture Models (GMMs) for robust parameter estimation and Radial Basis Functions (REFs) for scattered data interpolation-to exploit the natural constraints of this problem. Our algorithm offsets the tremendously laborious task of modeling these landscapes by hand, automatically generating a visually consistent, camera position dependent, thin-shell surface mesh within seconds for a typical tracking shot.
Extracolonic manifestations of Gardner syndrome: A case report
Blackwell McKenzie C,Thakkar Bhushan,Flores Andres,Zhang Wenjian 대한영상치의학회 2023 Imaging Science in Dentistry Vol.53 No.2
Gardner syndrome has head and neck manifestations that may be recognized during dental visits. Features such as multiple gnathic osteomas, impacted supernumerary teeth, and multiple foci of idiopathic osteosclerosis can be easily identified on dental radiographs, prompting the clinician to refer the patient for further investigation. A dental examination and routine radiographs play a vital role in revealing the extracolonic presentation of Gardner syndrome, which facilitates timely screening and detection of colorectal cancer and other malignancies associated with this condition. This report discusses the case of a 50-year-old Caucasian man who presented with a hard swelling of the left angle of the mandible and was diagnosed with Gardner syndrome based on abnormal findings from an oral examination, dental imaging, and medical and family history.
Material Retention : A Novel Approach to Performance of Pigment Coating Colors
Ken McKenzie,Anne Rutanen,Jukka Lehtovuori,Jaana Ahtikari,Teuvo Piilola 한국펄프·종이공학회 2008 펄프종이기술국제세미나 Vol.33 No.-
Cost efficiency is today the primary requirement in the paper and board industry. This has led therefore, to a greater preponderance of products with specifically designed functionality to take account of current industry needs. Continually increasing machine coating speeds together with these new coating colour components have put more emphasis on the importance of the correct rheology and water retention of the coating colours to achieve good runnability and end product quality. In the coating process, some penetration of the aqueous phase, to the base paper or board must occur to anchor the pre-coating to the base or the topcoat to the pre-coat. The aqueous phase acts as a vehicle not only for the binder, but also for the other components. If this water or material penetration is not controlled, there will be excessive material shift from the coating colour to the base, before immobilization of the coating colour will stop this migration. This can result in poor machine runnability, unstable system and uneven coating layer, impacting print quality.
Terrain Geometry from Monocular Image Sequences
Alexander Mckenzie,Eugene Vendrovsky,Junyong Noh 한국정보과학회 2008 Journal of Computing Science and Engineering Vol.2 No.1
Terrain reconstruction from images is an ill-posed, yet commonly desired Structure from Motion task when compositing visual effects into live-action photography. These surfaces are required for choreography of a scene, casting physically accurate shadows of CG elements, and occlusions. We present a novel framework for generating the geometry of landscapes from extremely noisy point cloud datasets obtained via limited resolution techniques, particularly optical flow based vision algorithms applied to live-action video plates. Our contribution is a new statistical approach to remove erroneous tracks ('outliers') by employing a unique combination of well established techniques-including Gaussian Mixture Models (GMMs) for robust parameter estimation and Radial Basis Functions (RBFs) for scattered data interpolation-to exploit the natural constraints of this problem. Our algorithm offsets the tremendously laborious task of modeling these landscapes by hand, automatically generating a visually consistent, camera position dependent, thin-shell surface mesh within seconds for a typical tracking shot.
Sugar reduction methods and their application in confections: a review
Elle McKenzie,Soo-Yeun Lee 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.4
Many American adults consume almost double the daily recommended amount of sugar. With excess consumption of sugar and consequential health problems arising, food manufacturers are investigating methods to reduce sugar while maintaining similar functional and sensory properties. The body of literature was searched for papers regarding sugar reduction, and the main methods of sugar reduction are summarized herein with a specific focus on high sugar products. Reducing sugar in confec- tions is possible; however, the challenge is maintaining the balance between texture and sweetness perception. Texture plays a large role in the sweetness perception of confec- tions, with firmer products often being perceived as less sweet. Depending on the method, 20–40% of sugar can be removed from confections without sacrificing sensory acceptance, often replaced with multiple ingredients. Fur- ther investigation is needed on confection models and how the emerging health trends set the foundation for sugar reduction.